Apr 7 – 10, 2019
Imperial College London
Europe/London timezone

Measurement of the CP violating phase φs originating in B⁰s→J/ψφ decays using LHCb Run 2 data

Apr 10, 2019, 11:15 AM
Clore Lecture Theatre, Huxley 213 (Imperial College London)

Clore Lecture Theatre, Huxley 213

Imperial College London

Imperial College London Prince Consort Road South Kensington London


Jennifer Zonneveld (The University of Edinburgh (GB))


The LHCb experiment focuses on CP violation, a process that explains the abundance of matter in the Universe. The Standard Model theory prediction of CP violation is much smaller than the observed asymmetry. The 'golden decay mode' B0s→J/ψφ could easily be influenced by New Physics particles, and shift the experimentally observed amount of CP violation from the theory prediction. I will present the analysis of 2015 + 2016 3fb-1 B0s→J/ψφ data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV. The talk will also cover the combination with Run 1 data, yielding the World's most precise determinations of the CP violating phase φs and of the decay width difference between the light and the heavy mass eigenstates in the B0s system.

Presentation materials